Phal with 1 lone bloom

[misorkid]

Hi Everyone, I caught the orchid love bug for a few months and acquired myself a few phals! One seems reluctant to grow and I'm just worried.

This was a recent acquisition from hausermann orchids online. Phal Brother Sara Gold.
It came with a developing spike and quickly formed 2 buds. With a sudden temperature drop in nyc, the spike stopped growing. The smaller of the 2 bud, shriveled and dropped. I got nervous, so i moved the plant to a bright south west facing window in my living room and the larger bud bloomed. I was afraid my cat would show interest in it so it stayed in my bedroom in the beginning. I took a chance but phew! he didn't care much for it besides the occasional nibble of the spag moss. Anyhow, temperature got warmer and spike shows no signs of growing. The lone blooms is pretty but is there anything i can do to initiate the spike to start growing again? I fertilize weakly weekly and i water only when it is almost dry - about once a week. The few aerial roots tend to dry out but i noticed from the clear pot and gently shoving the moss a little, all other roots down under are plump green and growing bright green tips. There was a new leaf growing when i received the plant which also doesn't seem to be getting bigger anymore. It is half the size of the bottom leaves. What does that mean? I didn't repot when i got the plant becuz i didnt want to disturb its growth....but now that its not moving, maybe i should have?

Is patience all I need?? Will the new spike start growing again or am I just getting one lone flower from this phal this season?

Any help is appreciated. I will try to put a picture.